Nintendo is delaying the delivery of 64GB Nintendo Switch cartridges to outside game developers until 2019, reports The Wall Street Journal, which cites several people familiar with the matter. The WSJ notes that Nintendo planned to make the 64GB cartridges available in the second half of 2018, but pushed the date back due to technical issues. The sources said the move has brought “slight disappointment” to some developers, especially US publishers who often need the larger capacity for their data-heavy games. The WSJ says those developers now “may wait” for the larger cartridges to be available before releasing those games for the Switch.